New desktop email client by Dinh Viêt Hoà and Dominique Leca. It’s a Gmail-only beta version at the moment, but they have plans to expand support to other IMAP servers. Rather than ape Apple Mail or even traditional three-pane email clients in general, Sparrow’s UI design borrows from Tweetie (for Mac), the iPad, and Gmail’s web app. I’m not sure how this design will scale to support a full list of mailboxes (or, in Gmail parlance, labels), but still, it’s very interesting, and an original take on email. Worth a look now, and worth keeping an eye on.